Update freetype to 2.12.1

ftdebug.c files are new, adapted the import script to copy the source
file for Windows as well.

Updated the .pro file for 5.15, adding those source files that define
symbols that were reported as unresolved when building.

Fixes: QTBUG-105032
Change-Id: I1e846167b268df4b1b0a50dcec602def1a0bdcb4
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
(cherry picked from commit e79d7f12e6ca15c499a553e4a701a2887e4b184c)
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>

1 files changed, 604 insertions, 0 deletions

diff --git a/src/3rdparty/freetype/src/sdf/ftsdfrend.c b/src/3rdparty/freetype/src/sdf/ftsdfrend.c
new file mode 100644
index 0000000000..b0213a40d3
--- /dev/null
+++ b/src/3rdparty/freetype/src/sdf/ftsdfrend.c
@@ -0,0 +1,604 @@
+/****************************************************************************
+ *
+ * ftsdfrend.c
+ *
+ *   Signed Distance Field renderer interface (body).
+ *
+ * Copyright (C) 2020-2022 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * Written by Anuj Verma.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT.  By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+#include <freetype/internal/ftdebug.h>
+#include <freetype/internal/ftobjs.h>
+#include <freetype/internal/services/svprop.h>
+#include <freetype/ftoutln.h>
+#include <freetype/ftbitmap.h>
+#include "ftsdfrend.h"
+#include "ftsdf.h"
+
+#include "ftsdferrs.h"
+
+
+  /**************************************************************************
+   *
+   * The macro FT_COMPONENT is used in trace mode.  It is an implicit
+   * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+   * messages during execution.
+   */
+#undef  FT_COMPONENT
+#define FT_COMPONENT  sdf
+
+
+  /**************************************************************************
+   *
+   * macros and default property values
+   *
+   */
+#define SDF_RENDERER( rend )  ( (SDF_Renderer)rend )
+
+
+  /**************************************************************************
+   *
+   * for setting properties
+   *
+   */
+
+  /* property setter function */
+  static FT_Error
+  sdf_property_set( FT_Module    module,
+                    const char*  property_name,
+                    const void*  value,
+                    FT_Bool      value_is_string )
+  {
+    FT_Error      error  = FT_Err_Ok;
+    SDF_Renderer  render = SDF_RENDERER( FT_RENDERER( module ) );
+
+    FT_UNUSED( value_is_string );
+
+
+    if ( ft_strcmp( property_name, "spread" ) == 0 )
+    {
+      FT_Int  val = *(const FT_Int*)value;
+
+
+      if ( val > MAX_SPREAD || val < MIN_SPREAD )
+      {
+        FT_TRACE0(( "[sdf] sdf_property_set:"
+                    " the `spread' property can have a value\n" ));
+        FT_TRACE0(( "                       "
+                    " within range [%d, %d] (value provided: %d)\n",
+                    MIN_SPREAD, MAX_SPREAD, val ));
+
+        error = FT_THROW( Invalid_Argument );
+        goto Exit;
+      }
+
+      render->spread = (FT_UInt)val;
+      FT_TRACE7(( "[sdf] sdf_property_set:"
+                  " updated property `spread' to %d\n", val ));
+    }
+
+    else if ( ft_strcmp( property_name, "flip_sign" ) == 0 )
+    {
+      FT_Int  val = *(const FT_Int*)value;
+
+
+      render->flip_sign = val ? 1 : 0;
+      FT_TRACE7(( "[sdf] sdf_property_set:"
+                  " updated property `flip_sign' to %d\n", val ));
+    }
+
+    else if ( ft_strcmp( property_name, "flip_y" ) == 0 )
+    {
+      FT_Int  val = *(const FT_Int*)value;
+
+
+      render->flip_y = val ? 1 : 0;
+      FT_TRACE7(( "[sdf] sdf_property_set:"
+                  " updated property `flip_y' to %d\n", val ));
+    }
+
+    else if ( ft_strcmp( property_name, "overlaps" ) == 0 )
+    {
+      FT_Bool  val = *(const FT_Bool*)value;
+
+
+      render->overlaps = val;
+      FT_TRACE7(( "[sdf] sdf_property_set:"
+                  " updated property `overlaps' to %d\n", val ));
+    }
+
+    else
+    {
+      FT_TRACE0(( "[sdf] sdf_property_set:"
+                  " missing property `%s'\n", property_name ));
+      error = FT_THROW( Missing_Property );
+    }
+
+  Exit:
+    return error;
+  }
+
+
+  /* property getter function */
+  static FT_Error
+  sdf_property_get( FT_Module    module,
+                    const char*  property_name,
+                    void*        value )
+  {
+    FT_Error      error  = FT_Err_Ok;
+    SDF_Renderer  render = SDF_RENDERER( FT_RENDERER( module ) );
+
+
+    if ( ft_strcmp( property_name, "spread" ) == 0 )
+    {
+      FT_UInt*  val = (FT_UInt*)value;
+
+
+      *val = render->spread;
+    }
+
+    else if ( ft_strcmp( property_name, "flip_sign" ) == 0 )
+    {
+      FT_Int*  val = (FT_Int*)value;
+
+
+      *val = render->flip_sign;
+    }
+
+    else if ( ft_strcmp( property_name, "flip_y" ) == 0 )
+    {
+      FT_Int*  val = (FT_Int*)value;
+
+
+      *val = render->flip_y;
+    }
+
+    else if ( ft_strcmp( property_name, "overlaps" ) == 0 )
+    {
+      FT_Int*  val = (FT_Int*)value;
+
+
+      *val = render->overlaps;
+    }
+
+    else
+    {
+      FT_TRACE0(( "[sdf] sdf_property_get:"
+                  " missing property `%s'\n", property_name ));
+      error = FT_THROW( Missing_Property );
+    }
+
+    return error;
+  }
+
+
+  FT_DEFINE_SERVICE_PROPERTIESREC(
+    sdf_service_properties,
+
+    (FT_Properties_SetFunc)sdf_property_set,        /* set_property */
+    (FT_Properties_GetFunc)sdf_property_get )       /* get_property */
+
+
+  FT_DEFINE_SERVICEDESCREC1(
+    sdf_services,
+
+    FT_SERVICE_ID_PROPERTIES, &sdf_service_properties )
+
+
+  static FT_Module_Interface
+  ft_sdf_requester( FT_Renderer  render,
+                    const char*  module_interface )
+  {
+    FT_UNUSED( render );
+
+    return ft_service_list_lookup( sdf_services, module_interface );
+  }
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /**                                                                     **/
+  /**  OUTLINE TO SDF CONVERTER                                           **/
+  /**                                                                     **/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /**************************************************************************
+   *
+   * interface functions
+   *
+   */
+
+  static FT_Error
+  ft_sdf_init( FT_Renderer  render )
+  {
+    SDF_Renderer  sdf_render = SDF_RENDERER( render );
+
+
+    sdf_render->spread    = DEFAULT_SPREAD;
+    sdf_render->flip_sign = 0;
+    sdf_render->flip_y    = 0;
+    sdf_render->overlaps  = 0;
+
+    return FT_Err_Ok;
+  }
+
+
+  static void
+  ft_sdf_done( FT_Renderer  render )
+  {
+    FT_UNUSED( render );
+  }
+
+
+  /* generate signed distance field from a glyph's slot image */
+  static FT_Error
+  ft_sdf_render( FT_Renderer       module,
+                 FT_GlyphSlot      slot,
+                 FT_Render_Mode    mode,
+                 const FT_Vector*  origin )
+  {
+    FT_Error     error   = FT_Err_Ok;
+    FT_Outline*  outline = &slot->outline;
+    FT_Bitmap*   bitmap  = &slot->bitmap;
+    FT_Memory    memory  = NULL;
+    FT_Renderer  render  = NULL;
+
+    FT_Pos  x_shift = 0;
+    FT_Pos  y_shift = 0;
+
+    FT_Pos  x_pad = 0;
+    FT_Pos  y_pad = 0;
+
+    SDF_Raster_Params  params;
+    SDF_Renderer       sdf_module = SDF_RENDERER( module );
+
+
+    render = &sdf_module->root;
+    memory = render->root.memory;
+
+    /* check whether slot format is correct before rendering */
+    if ( slot->format != render->glyph_format )
+    {
+      error = FT_THROW( Invalid_Glyph_Format );
+      goto Exit;
+    }
+
+    /* check whether render mode is correct */
+    if ( mode != FT_RENDER_MODE_SDF )
+    {
+      error = FT_THROW( Cannot_Render_Glyph );
+      goto Exit;
+    }
+
+    /* deallocate the previously allocated bitmap */
+    if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP )
+    {
+      FT_FREE( bitmap->buffer );
+      slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP;
+    }
+
+    /* preset the bitmap using the glyph's outline;         */
+    /* the sdf bitmap is similar to an anti-aliased bitmap  */
+    /* with a slightly bigger size and different pixel mode */
+    if ( ft_glyphslot_preset_bitmap( slot, FT_RENDER_MODE_NORMAL, origin ) )
+    {
+      error = FT_THROW( Raster_Overflow );
+      goto Exit;
+    }
+
+    /* nothing to render */
+    if ( !bitmap->rows || !bitmap->pitch )
+      return FT_Err_Ok;
+
+    /* the padding will simply be equal to the `spread' */
+    x_pad = sdf_module->spread;
+    y_pad = sdf_module->spread;
+
+    /* apply the padding; will be in all the directions */
+    bitmap->rows  += y_pad * 2;
+    bitmap->width += x_pad * 2;
+
+    /* ignore the pitch, pixel mode and set custom */
+    bitmap->pixel_mode = FT_PIXEL_MODE_GRAY;
+    bitmap->pitch      = (int)( bitmap->width );
+    bitmap->num_grays  = 255;
+
+    /* allocate new buffer */
+    if ( FT_ALLOC_MULT( bitmap->buffer, bitmap->rows, bitmap->pitch ) )
+      goto Exit;
+
+    slot->internal->flags |= FT_GLYPH_OWN_BITMAP;
+
+    slot->bitmap_top  += y_pad;
+    slot->bitmap_left -= x_pad;
+
+    x_shift  = 64 * -slot->bitmap_left;
+    y_shift  = 64 * -slot->bitmap_top;
+    y_shift += 64 * (FT_Int)bitmap->rows;
+
+    if ( origin )
+    {
+      x_shift += origin->x;
+      y_shift += origin->y;
+    }
+
+    /* translate outline to render it into the bitmap */
+    if ( x_shift || y_shift )
+      FT_Outline_Translate( outline, x_shift, y_shift );
+
+    /* set up parameters */
+    params.root.target = bitmap;
+    params.root.source = outline;
+    params.root.flags  = FT_RASTER_FLAG_SDF;
+    params.spread      = sdf_module->spread;
+    params.flip_sign   = sdf_module->flip_sign;
+    params.flip_y      = sdf_module->flip_y;
+    params.overlaps    = sdf_module->overlaps;
+
+    /* render the outline */
+    error = render->raster_render( render->raster,
+                                   (const FT_Raster_Params*)&params );
+
+    /* transform the outline back to the original state */
+    if ( x_shift || y_shift )
+      FT_Outline_Translate( outline, -x_shift, -y_shift );
+
+  Exit:
+    if ( !error )
+    {
+      /* the glyph is successfully rendered to a bitmap */
+      slot->format = FT_GLYPH_FORMAT_BITMAP;
+    }
+    else if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP )
+    {
+      FT_FREE( bitmap->buffer );
+      slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP;
+    }
+
+    return error;
+  }
+
+
+  /* transform the glyph using matrix and/or delta */
+  static FT_Error
+  ft_sdf_transform( FT_Renderer       render,
+                    FT_GlyphSlot      slot,
+                    const FT_Matrix*  matrix,
+                    const FT_Vector*  delta )
+  {
+    FT_Error  error = FT_Err_Ok;
+
+
+    if ( slot->format != render->glyph_format )
+    {
+      error = FT_THROW( Invalid_Argument );
+      goto Exit;
+    }
+
+    if ( matrix )
+      FT_Outline_Transform( &slot->outline, matrix );
+
+    if ( delta )
+      FT_Outline_Translate( &slot->outline, delta->x, delta->y );
+
+  Exit:
+    return error;
+  }
+
+
+  /* return the control box of a glyph's outline */
+  static void
+  ft_sdf_get_cbox( FT_Renderer   render,
+                   FT_GlyphSlot  slot,
+                   FT_BBox*      cbox )
+  {
+    FT_ZERO( cbox );
+
+    if ( slot->format == render->glyph_format )
+      FT_Outline_Get_CBox( &slot->outline, cbox );
+  }
+
+
+  /* set render specific modes or attributes */
+  static FT_Error
+  ft_sdf_set_mode( FT_Renderer  render,
+                   FT_ULong     mode_tag,
+                   FT_Pointer   data )
+  {
+    /* pass it to the rasterizer */
+    return render->clazz->raster_class->raster_set_mode( render->raster,
+                                                         mode_tag,
+                                                         data );
+  }
+
+
+  FT_DEFINE_RENDERER(
+    ft_sdf_renderer_class,
+
+    FT_MODULE_RENDERER,
+    sizeof ( SDF_Renderer_Module ),
+
+    "sdf",
+    0x10000L,
+    0x20000L,
+
+    NULL,
+
+    (FT_Module_Constructor)ft_sdf_init,
+    (FT_Module_Destructor) ft_sdf_done,
+    (FT_Module_Requester)  ft_sdf_requester,
+
+    FT_GLYPH_FORMAT_OUTLINE,
+
+    (FT_Renderer_RenderFunc)   ft_sdf_render,     /* render_glyph    */
+    (FT_Renderer_TransformFunc)ft_sdf_transform,  /* transform_glyph */
+    (FT_Renderer_GetCBoxFunc)  ft_sdf_get_cbox,   /* get_glyph_cbox  */
+    (FT_Renderer_SetModeFunc)  ft_sdf_set_mode,   /* set_mode        */
+
+    (FT_Raster_Funcs*)&ft_sdf_raster              /* raster_class    */
+  )
+
+
+  /*************************************************************************/
+  /*************************************************************************/
+  /**                                                                     **/
+  /**  BITMAP TO SDF CONVERTER                                            **/
+  /**                                                                     **/
+  /*************************************************************************/
+  /*************************************************************************/
+
+  /* generate signed distance field from glyph's bitmap */
+  static FT_Error
+  ft_bsdf_render( FT_Renderer       module,
+                  FT_GlyphSlot      slot,
+                  FT_Render_Mode    mode,
+                  const FT_Vector*  origin )
+  {
+    FT_Error   error  = FT_Err_Ok;
+    FT_Memory  memory = NULL;
+
+    FT_Bitmap*   bitmap  = &slot->bitmap;
+    FT_Renderer  render  = NULL;
+    FT_Bitmap    target;
+
+    FT_Pos  x_pad = 0;
+    FT_Pos  y_pad = 0;
+
+    SDF_Raster_Params  params;
+    SDF_Renderer       sdf_module = SDF_RENDERER( module );
+
+
+    /* initialize the bitmap in case any error occurs */
+    FT_Bitmap_Init( &target );
+
+    render = &sdf_module->root;
+    memory = render->root.memory;
+
+    /* check whether slot format is correct before rendering */
+    if ( slot->format != render->glyph_format )
+    {
+      error = FT_THROW( Invalid_Glyph_Format );
+      goto Exit;
+    }
+
+    /* check whether render mode is correct */
+    if ( mode != FT_RENDER_MODE_SDF )
+    {
+      error = FT_THROW( Cannot_Render_Glyph );
+      goto Exit;
+    }
+
+    if ( origin )
+    {
+      FT_ERROR(( "ft_bsdf_render: can't translate the bitmap\n" ));
+
+      error = FT_THROW( Unimplemented_Feature );
+      goto Exit;
+    }
+
+    /* Do not generate SDF if the bitmap is not owned by the       */
+    /* glyph: it might be that the source buffer is already freed. */
+    if ( !( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) )
+    {
+      FT_ERROR(( "ft_bsdf_render: can't generate SDF from"
+                 " unowned source bitmap\n" ));
+
+      error = FT_THROW( Invalid_Argument );
+      goto Exit;
+    }
+
+    /* nothing to render */
+    if ( !bitmap->rows || !bitmap->pitch )
+      return FT_Err_Ok;
+
+    FT_Bitmap_New( &target );
+
+    /* padding will simply be equal to `spread` */
+    x_pad = sdf_module->spread;
+    y_pad = sdf_module->spread;
+
+    /* apply padding, which extends to all directions */
+    target.rows  = bitmap->rows  + y_pad * 2;
+    target.width = bitmap->width + x_pad * 2;
+
+    /* set up the target bitmap */
+    target.pixel_mode = FT_PIXEL_MODE_GRAY;
+    target.pitch      = (int)( target.width );
+    target.num_grays  = 255;
+
+    if ( FT_ALLOC_MULT( target.buffer, target.rows, target.pitch ) )
+      goto Exit;
+
+    /* set up parameters */
+    params.root.target = &target;
+    params.root.source = bitmap;
+    params.root.flags  = FT_RASTER_FLAG_SDF;
+    params.spread      = sdf_module->spread;
+    params.flip_sign   = sdf_module->flip_sign;
+    params.flip_y      = sdf_module->flip_y;
+
+    error = render->raster_render( render->raster,
+                                   (const FT_Raster_Params*)&params );
+
+  Exit:
+    if ( !error )
+    {
+      /* the glyph is successfully converted to a SDF */
+      if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP )
+      {
+        FT_FREE( bitmap->buffer );
+        slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP;
+      }
+
+      slot->bitmap           = target;
+      slot->bitmap_top      += y_pad;
+      slot->bitmap_left     -= x_pad;
+      slot->internal->flags |= FT_GLYPH_OWN_BITMAP;
+    }
+    else if ( target.buffer )
+      FT_FREE( target.buffer );
+
+    return error;
+  }
+
+
+  FT_DEFINE_RENDERER(
+    ft_bitmap_sdf_renderer_class,
+
+    FT_MODULE_RENDERER,
+    sizeof ( SDF_Renderer_Module ),
+
+    "bsdf",
+    0x10000L,
+    0x20000L,
+
+    NULL,
+
+    (FT_Module_Constructor)ft_sdf_init,
+    (FT_Module_Destructor) ft_sdf_done,
+    (FT_Module_Requester)  ft_sdf_requester,
+
+    FT_GLYPH_FORMAT_BITMAP,
+
+    (FT_Renderer_RenderFunc)   ft_bsdf_render,    /* render_glyph    */
+    (FT_Renderer_TransformFunc)ft_sdf_transform,  /* transform_glyph */
+    (FT_Renderer_GetCBoxFunc)  ft_sdf_get_cbox,   /* get_glyph_cbox  */
+    (FT_Renderer_SetModeFunc)  ft_sdf_set_mode,   /* set_mode        */
+
+    (FT_Raster_Funcs*)&ft_bitmap_sdf_raster       /* raster_class    */
+  )
+
+
+/* END */